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1-((3*x)/4) = 2^3-(2*x) // - 2^3-(2*x)
2*x-((3*x)/4)-2^3+1 = 0
(-3/4)*x+2*x-2^3+1 = 0
5/4*x-7 = 0 // + 7
5/4*x = 7 // : 5/4
x = 7/5/4
x = 28/5
x = 28/5
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